Heading 3824

HTS code 3824Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included

Chapter
38Miscellaneous chemicals
Tariff lines
48
General duty
General duty rates from 2.8% to 6.5%, with 9 duty-free lines

Tariff lines under heading 3824

Full 10-digit codes with their general (MFN) duty rates. The correct line depends on the product's material, construction, and use.

HTS codeDescriptionGeneral rateUnit
3824.10.0000Prepared binders for foundry molds or cores (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included)6%kg
3824.30.0000Nonagglomerated metal carbides mixed together or with metallic binders (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included)3.6%kg
3824.40.1000Containing 5 percent or more by weight of one or more aromatic or modified aromatic substances (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Prepared additives for cements, mortars or concretes)6.5%kg
3824.40.2000Consisting wholly of inorganic substances (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Prepared additives for cements, mortars or concretes)Freekg
3824.40.5000Other (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Prepared additives for cements, mortars or concretes)5%kg
3824.50.0010Wet (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Nonrefractory mortars and concretes)Freet
3824.50.0050Other (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Nonrefractory mortars and concretes)Freet
3824.60.0000Sorbitol other than that of subheading 2905.44 (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included)4.9%kg
3824.81.0000Containing oxirane (ethylene oxide) (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Goods specified in subheading note 3 to this chapter)5%kg
3824.82.1000Chlorinated but not otherwise halogenated (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Goods specified in subheading note 3 to this chapter > Containing polychlorinated biphenyls (PCBs), polychlorinated terphenyls ({PCTs) or polybrominated biphenyls (PBBs))6.5%kg
3824.82.9000Other (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Goods specified in subheading note 3 to this chapter > Containing polychlorinated biphenyls (PCBs), polychlorinated terphenyls ({PCTs) or polybrominated biphenyls (PBBs))3.7%kg
3824.83.0000Containing tris(2,3-dibromopropyl) phospate (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Goods specified in subheading note 3 to this chapter)5%kg
3824.84.0000Containing aldrin (ISO), camphechlor (ISO) (toxaphene), chlordane (ISO), chlordecone (ISO), DDT (ISO) (clofenatone (INN)), 1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane), dieldrin (ISO INN), endosulfan (ISO), endrin (ISO), heptachlor (ISO) or mirex (ISO) (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Goods specified in subheading note 3 to this chapter)6.5%kg
3824.85.0000Containing 1,2,3,4,5,6-hexachlorocyclohexane (HCH (ISO)), including lindane (ISO,INN) (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Goods specified in subheading note 3 to this chapter)6.5%kg
3824.86.0000Containing pentachlorobenzene (ISO) or hexachlorobenzene (ISO) (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Goods specified in subheading note 3 to this chapter)6.5%kg
3824.87.0000Containing perfluorooctane sulfonic acid, its salts, perfluorooctane sulfonamides, or perfluorooctane sulfonyl fluoride (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Goods specified in subheading note 3 to this chapter)3.7%kg
3824.88.0000Containing tetra-, penta-, hexa-, hepta-, or octabromodiphenyl ethers (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Goods specified in subheading note 3 to this chapter)6.5%kg
3824.89.0000Containing short-chain chlorinated paraffins (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Goods specified in subheading note 3 to this chapter)6.5%kg
3824.91.0000Mixtures and preparations consisting mainly of (5-ethyl-2-methyl-2-oxido3,2-dioxaphosphinan-5-yl)methyl methylphosphonate and bis(5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl)methyl methylphosphonate (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Other)5%kg
3824.92.0000Polyglycol esters of methylphosphonic acid. (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Other)5%kg
3824.99.1100In the form of ingots (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Other > Other > Cultured crystals (other than optical elements of chapter 90), weighing not less than 2.5 g each)Freekg
3824.99.1900Other (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Other > Other > Cultured crystals (other than optical elements of chapter 90), weighing not less than 2.5 g each)6.5%kg
3824.99.2100Consisting wholly of substances found naturally in coal tar, whether obtained from coal tar or other source (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Other > Other > Other > Mixtures containing 5 percent or more by weight of one or more aromatic or modified aromatic substances)Freekg
3824.99.2500Aqueous mixtures of triphenyl sulfonium chloride, diphenyl (4-phenylthio)phenyl sulfonium chloride and (thiodi-4,1- phenylene)bis(diphenyl sulfonium) dichloride (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Other > Other > Other > Mixtures containing 5 percent or more by weight of one or more aromatic or modified aromatic substances)6.5%kg
3824.99.2600Benzene, 2,4-diisocyanate-1,3,5-tris(1- methylethyl) homopolymer; 5-Fluoro-2-methyl-1-[[4-(methylsulfinyl)- phenyl]methylene]-1H-indene;Mixtures of dimethyl phthalate, t-butanol, hydrogen peroxide, and sodium salicylate; andMixtures containing derivatives of N-[4-(2- hydroxy-3-phenoxypropoxy)phenyl]- acetamide (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Other > Other > Other > Mixtures containing 5 percent or more by weight of one or more aromatic or modified aromatic substances)Freekg
3824.99.2900Other (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Other > Other > Other > Mixtures containing 5 percent or more by weight of one or more aromatic or modified aromatic substances)6.5%kg
3824.99.3100Of bismuth (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Other > Other > Other > Mixtures of two or more inorganic compounds)6.5%kg
3824.99.3200Of hydrosulfite compounds, of sulfoxylate compounds, or of both (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Other > Other > Other > Mixtures of two or more inorganic compounds)6.5%kg
3824.99.3300Of mercury (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Other > Other > Other > Mixtures of two or more inorganic compounds)4.2%kg
3824.99.3400Of molybdenum (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Other > Other > Other > Mixtures of two or more inorganic compounds)2.8%kg
3824.99.3500Of tungsten (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Other > Other > Other > Mixtures of two or more inorganic compounds)6.5%kg
3824.99.3600Of vanadium (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Other > Other > Other > Mixtures of two or more inorganic compounds)6.5%kg
3824.99.3910Of lithium nickel cobalt manganese oxides (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Other > Other > Other > Mixtures of two or more inorganic compounds > Other)Freekg
3824.99.3990Other (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Other > Other > Other > Mixtures of two or more inorganic compounds > Other)Freekg
3824.99.4140Mixtures of fatty acid esters (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Other > Other > Other > Fatty substances of animal or vegetable origin and mixtures thereof)4.6%kg
3824.99.4190Other (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Other > Other > Other > Fatty substances of animal or vegetable origin and mixtures thereof)4.6%kg
3824.99.4900Mixtures that are in whole or in part of hydrocarbons derived in whole or in part from petroleum, shale oil or natural gas (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Other > Other > Other > Other)6.5%kg
3824.99.5000Chlorinated but not otherwise halogenated (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Other > Other > Other > Other > Mixtures of halogenated hydrocarbons)6.5%kg
3824.99.5500Other (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Other > Other > Other > Other > Mixtures of halogenated hydrocarbons)3.7%kg
3824.99.7000Mixtures of dibromo neopentyl glycol; Polydibromophenylene oxide; Tetrabromobisphenol-A-carbonate oligomers; and Electroplating chemical and electroless plating solutions and other materials for printed circuit boards, plastics and metal finishings (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Other > Other > Other > Other > Other)Freekg
3824.99.7510Naphthenic acids (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Other > Other > Other > Other > Other > Naphthenic acids, their water-insoluble salts and their esters)3.7%kg
3824.99.7550Other (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Other > Other > Other > Other > Other > Naphthenic acids, their water-insoluble salts and their esters)3.7%kg
3824.99.9310Containing C11 or lower alcohols only (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Other > Other > Other > Other > Other > Other > Mixtures of acyclic, monohydric, unsubstituted alcohols)5%kg
3824.99.9320Containing C12 or higher alcohols only (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Other > Other > Other > Other > Other > Other > Mixtures of acyclic, monohydric, unsubstituted alcohols)5%kg
3824.99.9330Other (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Other > Other > Other > Other > Other > Other > Mixtures of acyclic, monohydric, unsubstituted alcohols)5%kg
3824.99.9361Mixtures consisting mainly of chemicals containing a phosphorus atom to which is bonded one methyl, ethyl, n-propyl or isopropyl group, but no other carbon atoms (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Other > Other > Other > Other > Other > Other)5%kg
3824.99.9386Mixtures of a kind containing magnesium used as a desulfurization reagent (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Other > Other > Other > Other > Other > Other)5%kg
3824.99.9397Other (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included > Other > Other > Other > Other > Other > Other)5%kg

Documents required to import under 3824

Customs paperwork typically required to import these goods into the United States. Conditional items depend on shipment value, transport mode, or origin.

  • Commercial InvoiceRequired
  • Packing ListRequired
  • Bill of Lading / Airway BillRequired
  • CBP Entry Summary (7501)Required

    Prepared and filed by your customs broker

  • CBP Entry / Release (3461)Required

    Prepared and filed by your customs broker

  • Customs Bond (CBP 301)Conditional

    Required for formal entries — generally shipments valued over $2,500

    Single-entry or continuous bond, obtained through your broker or a surety

  • Importer Security Filing (ISF "10+2")Conditional

    Required for ocean freight only

    Filed electronically at least 24 hours before loading at the foreign port

  • Importer ID Input Record (CBP 5106)Conditional

    Required to establish or update your importer-of-record number with CBP

    One-time setup for a new importer; not filed per shipment

  • Entry Manifest (CBP 7533)Conditional

    Alternative to the 3461 for informal, low-value, or contiguous-country entries

  • Safety Data Sheet (SDS/MSDS)Required
  • EPA TSCA CertificationConditional

    Required for chemical substances regulated under TSCA

  • EPA Notice of Arrival (Form 3540-1)Conditional

    Required for pesticides and devices (typically Ch. 38)

Common questions

What is HTS code 3824?
HTS heading 3824 covers prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included. It sits in Chapter 38 (miscellaneous chemicals) of the US Harmonized Tariff Schedule and contains 48 tariff lines.
What is the duty rate for HTS 3824?
General duty rates from 2.8% to 6.5%, with 9 duty-free lines. The general rate applies to most-favoured-nation trading partners; goods from countries with a free trade agreement may qualify for a reduced or duty-free special rate.
How many digits does a full HTS code have?
US import entries require the full 10-digit HTS code. Heading 3824 is the first four digits — the remaining six narrow it down to the specific product, which is what determines the duty rate you actually pay.

Related headings in Chapter 38